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Metal nanoparticles in ionic liquid‐cosolvent biphasic systems as active catalysts for acetylene hydrochlorination
AIChE Journal ( IF 3.7 ) Pub Date : 2018-02-03 , DOI: 10.1002/aic.16103
Lifeng Yang 1 , Qiwei Yang 1 , Jingyi Hu 1 , Zongbi Bao 1 , Baogen Su 1 , Zhiguo Zhang 1 , Qilong Ren 1 , Huabin Xing 1
Affiliation  

Ionic liquid (IL)‐stabilized metal nanoparticles (NPs) have attracted increased attention as novel catalysts for various reactions due to their excellent stability and high activity. However, the high viscosity of ILs limits their applications. Here, for the first time, we reported an NPs@IL‐cosolvent liquid–liquid biphasic system for metal NPs catalysis. The NPs were successfully confined to IL phase, and abundant IL droplets containing NPs were generated under the reactant flow. The NPs@IL droplets served as microreactors for the catalysis; while the low viscosity organic phase enabled the rapid mass transfer of substances. The biphasic system exhibited improved performance for acetylene hydrochlorination than that of the pure IL system. An acetylene conversion of 98% and a selectivity of 99.5% were achieved along with a 90% decrease on IL usage. The tolerable gas hourly space velocity in the biphasic system for a satisfactory conversion was almost double that of the pure IL system. © 2018 American Institute of Chemical Engineers AIChE J, 64: 2536–2544, 2018

中文翻译:

离子液体-助溶剂双相体系中的金属纳米颗粒作为乙炔盐酸盐氯化反应的活性催化剂

离子液体(IL)稳定的金属纳米颗粒(NPs)具有出色的稳定性和高活性,作为用于各种反应的新型催化剂已引起越来越多的关注。但是,IL的高粘度限制了它们的应用。在这里,我们首次报道了用于金属NPs催化的NPs @ IL-共溶剂液-液两相系统。将NP成功地限制在IL相,并且在反应物流下产生大量的包含NP的IL液滴。NPs @ IL液滴充当催化的微反应器;低粘度有机相可以使物质快速传质。与纯IL系统相比,双相系统在乙炔盐酸盐化方面表现出更高的性能。乙炔转化率达到98%,选择性达到99.5%,IL用量降低了90%。在双相系统中,对于令人满意的转换,可容忍的气体时空速度几乎是纯IL系统的两倍。©2018美国化学工程师学会AIChE J,64:2536–2544,2018
更新日期:2018-02-03
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